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Separation of Lipids via Thin Layer Chromatography

This post comes to us from “Biochem write up

Intro:
The aim of this practical is to carry out TLC in which the substances we wish to separate are absorbed onto the thin layer. Lipids are determined by isolation and the ability to purify the substance. Due to the way the substances interact with the matrix in different ways we are able to seperate them. Substances which interact strongly with the matrix but not with the solvent will move very slowly and those soluble in the solvent will dissolve easily and be carried along the solvent.
thin layer chromatography phospholipids
Egg yolk contains trioleine, cholesterol palmitate and phosphatidylethonolamine, The most polar of the three elements is the second element. It hardly moves up the TLC because of the presence of several polar groups; phosphate groups, amine groups and several oxygens , and cholesterol palmitate being the most non polar.

 

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From another great Blog: PRACTICAL 4: SEPARATION OF LIPIDS VIA THIN LAYER CHROMATOGRAPHY

We love to see Chromatography written about all over the place. So whenever something good is brought to our attention, we want to pass it along to you.

This is from Biochemistry Practicals:

In this practical the lipids present in egg yolk were separated through absorption chromatography using a TLC plate. The concept is similar to paper chromatography, a plate containing a thin hydrophilic layer called a matrix is used, and a non polar solvent is allowed to move up the plate through capillary action. Thus more polar lipids will move more slowly than non polar lipids.

Click Here to read the full post.